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Finding the Fourth Proportional to 152,522.95, 210,489.44 and 87,968.18

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Solution

The fourth proportional to 152,522.95, 210,489.44 and 87,968.18 is: 121,400.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,522.95 : 210,489.44 = 87,968.18 : x
  2. Step 2: Convert to fraction form
    152,522.95/210,489.44 = 87,968.18/x
  3. Step 3: Cross multiply
    152,522.95x = 210,489.44 × 87,968.18
  4. Step 4: Simplify right side
    152,522.95x = 18,516,371,848.40
  5. Step 5: Solve for x
    x = 18,516,371,848.40/152,522.95
  6. Step 6: Final answer
    x = 121,400.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.